Electronic Circuits - Electronic Tutorials - Electronic Hobby Projects - A Complete Electronic Resource Centre
Electronic, PC, Microprocessor &  Mircro Controller based Kits & Projects for School &  College level students
 
 

Cooling Fan Circuits

Products

Sitemap

Online
Calculators

Circuits (A-C)

Circuits (D-O)

Circuits (P-Z)

Tutorials

AN770: Linear Voltage Fan Speed Control using Microchip's TC64x Family TC642, TC646, TC648 - Microchip Application Note Published 27-Jul-04  (app note)
AN771: Suppressing Acoustic Noise in PWM Fan Speed Control Systems - Microchip Application Note Published 27-Jul-04  (app note)
AN-772: A Design & Manufacturing Guide for the Lead Frame Chip Scale Package - AN-772 Analog Devices Application Note  (app note)
AN772: Speed Error in PWM Fan Control Systems TC646, TC647, TC649 - Microchip Application Note Published 27-Jul-04  (app note)
Autonomous Fan Control for Processor Systems using the LM85 - National Semiconductor Application Note  (app note)
Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application Note  (app note)
Boost Converter Controls 12 Volt Fan from 5 Volt Supply - 12/12/97 EDN-Design Ideas:   --Temperature-controlled PWM boost converter allows operation of a12V brushless dc fan from a5V supply.....(design idea)
Ceiling Fanspeed Control - (electronic schematic / circuit)
Circuit Generates Analog Fan Speed Control - Maxim-IC Appnote #1125 / (app note) -This circuit delivers a continuous and linear fan-control voltage that is proportional to temperature.
Circuit Protects System from Overheating - 11/08/01 EDN-Design Ideas: The two-chip circuit in Figure 1 provides fan control and overtemperature warning and shutdown signals to protect systems from excessive heat. The circuit monitors the temperature of the pc board and the die temperature of a CPU, an FPGA, or another IC with an on-chip temperature-sensing transistor.....(design idea)
Circuit Provides Efficient Fan Speed Control - 03/04/04 EDN-Design Ideas: As Moore's Law plunges us into the realm of multigigahertz processors and PCs with gigabytes of RAM, engineers face the task of removing the heat that these state-of-the-art components produce. Cooling such systems poses a dilemma. If you optimize the fan size and speed for nominal operating conditions, the system is susceptible to failure when conditions deteriorate.....(design idea)
Computer Fan Speed Tacho Out Circuit: Add a Fan Speed Monitor Lead to Any 12V Two Wire Fan.  - You will find this identical circuit inside most 3 wire computer fans with speed monitoring output to the motherboard.
Peel off the sticker from the fan hub in order to access a motor winding pin for connecting up the tacho circuit.
Fan timer based on Motorola 68HC908QT2 - (electronic circuit)
Four-Speed Fan Control using Simple Remote Diode Temperature Sensor - National Semiconductor Application Note  (app note)
Implementing Temperature-Based Variable Fan Speed Control in Nlx Power Supplies - Microchip Application Note Published 4-Feb-03  (app note)
Intelligent Thermal Management using Brushless DC Fans - Microchip Application Note Published 24-Feb-03  (app note)
Interfacing Microchip’s Fan Speed Controllers to a SPI? - Microchip Application Note Published 12-Nov-02  (app note)
IR Digital Thermostat for FAN - This circuit measures temperature in Celsius scale and displays it on an alphanumeric LCD screen When temperature rise to 40 C an alarm is activated and at the same time a relay is also activated which drives a fan to keep the temperature at a level.....(design idea circuit)
Linear Voltage Fan Speed Control using Microchip's TC64x Family TC642, TC646, TC648 - Microchip Application Note Published 27-Jul-04  (app note)
LTC1840: I2c Fan Control Ensures Continuous System Cooling - DN270  Design Notes (Linear Technology) (app note)
MOSFET Switch Provides Efficient AC/DC Conversion - 02/17/00 EDN-Design Ideas: / (schematic / circuit)
Noise Filtering & the ADT7461 - AN-699 Analog Devices Application Note  (app note)
Programming the Automatic Fan Speed Control Loop - AN-613 Analog Devices Application Note  (app note)
Redundant Fan Systems using the TC647 Fan Manager - Microchip Application Note Published 4-Feb-02  (app note)
Simple temperature regulated FAN speed Controller - This regulator uses a P-FET to change the positive supply voltage to a FAN an NTC resistor mounted on the device that needs cooling will change the fan speed, the temperature on the heat sink will therefore be constant, while the FAN speed will change, depending on power disipated The RPM output signal from most FAN types will continue to function,....(schematic)
SOT-23 Smbus Fan Speed Controller Extends Battery Life & Reduces Noise - DN238  Design Notes (Linear Technology) (app note)
Speed Error in PWM Fan Control Systems TC646, TC647, TC649 - Microchip Application Note Published 27-Jul-04  (app note)
Suppressing Acoustic Noise in PWM Fan Speed Control Systems - Microchip Application Note Published 27-Jul-04  (app note)
System monitors multiple temperatures Controls Fan speed - 10/12/00 EDN-Design Ideas:.....(design idea)
TB063: An Integrated Fan Speed Control Solution can Lower System Costs, Reduce Acoustic Noise, Power Consumption & Enhance System Reliability - Microchip Application Note Published 24-Feb-03  (app note)
TC64X/TC64XB Demo Board for Fan Speed Controllers - Fan control module allows the user to quickly prototype fan control circuits based on the TC642 or TC646 PWM Fan Control IC's. Its uses though hole components for easy user assembly and evaluation.  (app note)
Temperature monitor & fan Controller reduce fan noise - 05/10/01 EDN-Design Ideas: (design idea)
Temperature-controlled 12V dc Fan - Suitable for computer cooling fans.  LED motor speed indicator.  (electronic design)
Thermo Cooling Fan - Use a 12V computer fan to cool your amp.  Uses diode temperature sensor
Use a PWM fan Controller in an EMI susceptible circuit - 02/16/06 EDN-Design Ideas: Control it with either an external negative-temperature-coefficient thermistor or a PIC microcontroller and its SMBus serial-data bus.....(design idea)
Using the ADT7461 as a Multichannel Temperature Sensor - AN-702 Analog Devices Application Note  (app note)
ZXBM200x Series of Variable Speed 2-Phase Fan Motor Controller - Zetec Semiconductors  Applications Notes This applications document is intended to aid users in their development of the controller electronics for fan and blower motors using the ZXBM200x series of variable speed, 2-phase, DC brushless motor controllers.   (app note)
AC line powers microController based fan speed regulator - 11/09/06 EDN-Design Ideas: Capacitor drops voltage, decreases waste heat in line-powered controllers.
ADT7463 Configurations - AN-612 Analog Devices Application Note  (app note)
AN-1260: Autonomous Fan Control for Processor Systems using the LM85 - National Semiconductor Application Note  (app note)
AN-1262: Four-Speed Fan Control using Simple Remote Diode Temperature Sensor - National Semiconductor Application Note  (app note)
AN-345: Grounding for Low-and-High-Frequency Circuits - AN-345 Analog Devices Application Note  (app note)
AN-348: Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application Note  (app note)
AN-349: Keys to Longer Life for CMOS - AN-349 Analog Devices Application Notes  (app note) Here's How CMOS Can be Protected Against Abuse
AN36 ZXBM200x Series of Variable Speed 2-Phase Fan Motor Controller - Zetec Semiconductors  Applications Notes This applications document is intended to aid users in ir development of  controller electronics for fan and blower motors using  ZXBM200x series of variable speed, 2-phase, DC brushless motor controllers.   (app note)
AN-612: ADT7463 Configurations - AN-612 Analog Devices Application Note  (app note)
AN-613: Programming the Automatic Fan Speed Control Loop - AN-613 Analog Devices Application Note  (app note)
AN-699: Noise Filtering & the ADT7461 - AN-699 Analog Devices Application Note  (app note)
AN-702: Using the ADT7461 as a Multichannel Temperature Sensor - AN-702 Analog Devices Application Note  (app note)
AN764: Implementing Temperature-Based Variable Fan Speed Control in Nlx Power Supplies - Microchip Application Note Published 4-Feb-03  (app note)
AN767: Interfacing Microchip’s Fan Speed Controllers to a SPI? - Microchip Application Note Published 12-Nov-02  (app note)
AN768: Redundant Fan Systems using the TC647 Fan Manager - Microchip Application Note Published 4-Feb-02  (app note)
   
Click here for more Electronics Circuits  Click here for Electronics Tutorial